Question

Find the zeroes of the polynomial x² + 2x – 195.

Answer 1

Here, p(x) = x² + 2x – 195 

Let p(x) = 0 

⇒ x² + (15 – 13)x – 195 = 0 

⇒ x² + 15x – 13x – 195 = 0 

⇒ x (x + 15) – 13(x + 15) = 0 

⇒ (x + 15) (x – 13) = 0 

⇒ x = –15, 13 

Hence, 

the zeroes are –15 and 13.